Bass Harbor Lighthouse is just around the shore from Cadillac Mountain and Acadia National Park in Maine. It is a struggle to get to this vantage point! Rock-hopping at low-tide on slimy boulders only gives you a small window of time to get a picture (not to mention every photographer within 50 miles wants the same vantage point).

I managed to get this long exposure just before the tide came back in!